Vauxhall Astra Revving sound when idling

2011 Vauxhall Astra Problem

CarVauxhall Astra 1.7cdti
Ownerlaura evans
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I have a 2011 astra 1.7 diesel 2011, 66k on the clock.

The problem is when idling the engine sounds as if it's revving but the rev counter sits at a constant place just under 1000,
The engine does not rev violently but it's audible rev idle rev idle,
Of late I seem to have used a little more fuel than usual but just a little, I have had a full diagnostics run on the car and nothing came up, any ideas to what could be causing it?
Thank you in advance
Problem Category
Engine, Cooling System & Drivetrain

Leaks & Noises, Interior and Bodywork

Running Rough, Starting & Power Loss

Solution 1
whittingehame | Legend | Since: Oct 2009 | Posts: 444 | Fixes: 11808 | View Garage
Suggested Solution

Probably the DPF regenerating which is perfectly normal .

Posted on Tuesday 9th of May 2017
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